As established in the first draft script of "Fusion" (which had the working title "Equilibrium"), this character's name was originally to have been "Tyrus". Also in the episode's script (both the first draft and the final draft), Tavin was described as "A Vulcan man with slightly graying hair [....] But he looks very different from any Vulcan we've met... his hair is styled differently, and his clothes are more casual. For a Vulcan, Tavin is uncharacteristically friendly."